Random short freezes due to TTM buffer migrations

[Marek Olšák]

On Tue, Aug 23, 2016 at 8:01 PM, Marek Olšák <maraeo at gmail.com> wrote:
> On Thu, Aug 18, 2016 at 10:52 AM, Christian König
> <deathsimple at vodafone.de> wrote:
>> In that case my patch should clearly help with that.
>>
>> Going to release what I have so far today, but looks like I need more time
>> actually fixing this.
>>
>> In the meantime you could try the "drm/amdgpu: fix lru size grouping" patch
>> as well. It fixes a bug related to this and could help as well.
>
> Thanks. "drm/amdgpu: fix lru size grouping" does help a lot and
> removes most of the long stalls.
>
> There are still some spikes in the number of moved bytes, but rarely
> do they cause long stalls and the number of moved bytes is lower now (e.g.
> the spikes are at 512MB/s instead of 4GB/s).

Shouldn't "drm/amdgpu: fix lru size grouping" be a candidate for
stable since it improves usability of the driver and seems to fix a
regression?

Marek